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Effect of Wide Plant Spacing on Six Cultivars of Upland Cotton 1
Author(s) -
Marani A.,
Ephrat E.,
Dor Z.
Publication year - 1974
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1974.0011183x001400020031x
Subject(s) - lint , cultivar , biology , gossypium hirsutum , fiber crop , agronomy , fiber , malvaceae , yield (engineering) , horticulture , fineness , materials science , composite material
Six Gossypium hirsutum L. cultivars were compared under conditions of wide (40 cm) and normal (10 to 12 cm) spacing between plants, with 1 m between rows. Plant spacing had no significant effect on boll weight, boll retention, fiber length uniformity, or fiber strength or fineness. Lint percent was increased and fiber length was decreased by wide spacing, but there were no cultivar ✕ spacing interactions for these traits. Lint and seed cotton yields, boll number, and flower number (per unit area) were usually decreased by wide spacing, but significant cultivar ✕ spacing interactions were detected for these traits. ‘Acala 1517C’ and ‘Del Cerro’ were affected more strikingly than the other cultivars by plant spacing, probably because of their pyramidal plant‐type and short fruiting branches. The relative performance of genotypes for lint yield and associated traits, when evaluated under wide spacing, may therefore not be valid for more closely spaced plantings.